physics help1. A roller coaster car starts from rest and rolls down a frictionless track, reaching speed fv at the bottom. a. If you want the car to go two times as fast at the bottom, by what factor must you increase the height of the track? b. Does your answer to part (a) depend on ...
November 7, 2008

1 more phyiscs for todaysorry for asking for help agen. a baseball catcher puts on an exhibition by catching a .150kg ball dropped from a helicopter at a height of 100m above the catcher. if the catcher "gives with the ball for a distance of .75m while catching it, what average force is exerted ...
November 6, 2008

phsyicsthank you so much. i was struggling through this problem for so long. but now everything makes perfect sense! =D
November 6, 2008

phsyicsan 8g bullet is shot into a 4kg block at rest on a frictionless horizontal surface. the bullet remains lodged in the block. the block movies into a spring and compresses it by 3cm. the force constant of the spring is 1500N/m. the initial speed of the bullet is closest to?
November 6, 2008

physics kinetic energya) if a particle's speed decreases by a factor of four, by what factor does its kinetic energy change? b) particle A has three times the mass and twice the kinetic energy of particle B. What is the speed ratio VA / VB?
October 31, 2008

PhysicsA bridge that was 5.0m long has been washed out by the rain several days ago. How fast must a car be going to successfully jump the stream? Although the road is level on both sides of the bridge, the road on the far side is 2.0m lower than the road on this side.
October 19, 2008

science 275do you believe that humans can harvest forest resources in an environmentally frindly way? or, should national forest be left in their natural state in which resources are not used to benefit humans?
September 18, 2008

Accountinghow can you determine what side is a debit and what side is a credit A debit is an expense that is paid. A credit is income. The following rules are applied to decide debit or credit side. 1.Debit what comes in and credit what goes out 2.Debit the reciever and credit the giver...
June 10, 2007

MathIf an item was purchased at $112.00 dollars after a 20% discount what was the original price of the item. I know the answer is 140.00 but I to know the formula that is used to get that answer. Thanks The $112 you are paying represents 80% of the original price, since 20% was ...
May 22, 2007

business and societyAs a business owner, information can be one of your key assets. why must you,as a business owner manage information as a resource? How might the internet and related communication technology change your business? What are some of the ways that information technology can ...
April 15, 2007

com 125How can readers distinguish beween prejudicial and no prejudicial use of rhetorical devices? paste rhetorical devices in the search window above.
October 31, 2006

critical thinkingMy question is What is the role of rhetoric in influencing people's attitudes and beliefs. Paste role of rhetoric in influencing in the search window above. Rhetoric essentially is "word choice" to convey a particular point of view. Since we have become a media ...
October 31, 2006

ENGLISHNoah Webster,author of the original Webster's Dictionary,believed that a dictionaryshould contain more than the definitions of words;therefore,he included their etymologies as well. A. PROPERLY CONSTRUCTED SENTENCE B. DANGLER C. RUN-ON D. COMMA-SPLICE What do you think the...
October 19, 2006

EnglishWhat,if anything,is wrong with the following sentence? Do you see the pretty girl standing next to the car with the red boots on? 1. properly constructed sentence 2. misplaced part 3. run-on 4. fragment I THINK THE CORRECT ANSWER IS:Number 1 Am I Correct? How can the sentence ...
October 19, 2006

QUESTION--Please HelpWhat,if anything,is wrong with this sentence? Do you advise me to go to college or that I should get a job after high school? A. Properly constructed sentence B. Misplaced part C. Lacks parallel parts D. Run-on I think the answer is C, am I CORRECT? Joyce, you are absolutely ...
October 19, 2006